Peel duster



July 29, 1930. v y w. w. LA RUE 'I v 1,771,495

: vPEEL DUsTER Original Filed Oct. 15,. 1928 2 Sheets-Sheet l i July 29, 1930. W,v W.. LAl RUE 1,771,495

4 PEEL DUSTER' Original Filed Oct. l5, 1928 `2 SheetsSheet 2 52 I IE l E 49 LJ L 3056 27 3f Patented July Y29, 1930 WALTER `LA una, 'or MINNEAroLrs, MINNESOTA rum. DUsTER Application filed October 15, 1928, Serial No. 312,514. RenewedMay 17, 1930.`

i This invention relates to peel dusters, which are machines used extensively in bakeries and the like for sifting or dusting a layer of meal s upon a board or plate. i i

peel yduster, a machine forl useginA siftinga layerl of meal orthe like upon aboard or plate, comprising a hopper for containing the meal to besifted and providedwith a sieve at its An object of the inventionisto provide a lower discharge end,'in combination Awith means for agitatingthe meal adjacent to the sieve automatically and as an incident to the insertion and withdrawal of the peel, which i5 meelfjorthe like is dusted.,`

Other objects of the invention will appear pla-n view of my improved ma! porting frame including rear legs 1 and'tubular front legs 2, the several legs being at the corners and joined by `strengthening bars 3. A litt-ing 4 is attached to the upper end of each ly supports aninwardly extending arm 5.

A top franieior themachineis mounted upon this supporting frame and comprises two parallel side members 6 having their low`v eredgesyseated vupon the arms 5 at the front of the machine`,1and having their rear ends attached to a `frame cross member frigid with the upper ends of the legs 1. ,A pair of guide strips 8 areV provided. One of said guide strips 8 Visllocated at the inner side of the lower edge. of each ofthe frame sidemembers 6.. `'Igheguidejstr'ips Shave their front ends onand attached to the arms 5 andtheir rear ends rigidly supported along theinner'sides of the frame side members 6. These guide l isthe4 board or plate upon which vthelay-er'oi' approximately onv my improved-.peelduster comprises asup-V ofthe tubular legs 2, and each fitting rigid-- strips 8 are horizontaland are parallel with each other, andv constitute a support4 for the peel 9 which is the board or plate upon which the layer of meal or the like is sifted. That is to say, the peelf9 is slidable rearwardly and forwardlyupon the supporting strips k8. The peel 9 is guided horizontally4 by said strips 8 and is guided along its lateral edges bythe frame side members 6. V o

V.The hopper `for containing the meal toibe' sitted is supported near the front end of the machine.` As shown, the hopper comprises two vertical sidewalls 10 extending vertically above the frame side members' 6 andbeing rigidly attached to andsupported by said side members 6 by metallic plates 11. `The lower edges of the-plates 11 are attached to the f frame .sdemembers .16 by fasteners" 12, and theupper edges of said plates are attached tojthe hopper, side walls; 10 Iby fasteners 13. Thehop'per includes a rear `wall 14 which inelinesV upwardly and rearwardly between the smilelrlynlned rear edges of thehopper side Walls 1 0., At its upper edge the inclined wall 14 is vclosely,jointed witha relatively narrow vertical `wall `member; 15 which eX- tends to the upperedgs Oftheside walls 10. The lower edge ofithefinclined rear wall 14 forms close joint ,withfa relatively narrow vertical wall member 16 Figjli); which `eX- tends to the lower ends of the side walls and forms close joint with aj relativelynarrow horizontal ledge-forming wall member 17. The ledge wall 17 extends iforwardly for a short `distance beyond theinner surfaceof the wall member 16. The 'front ofthe hopper comprises a verticalupper wall portion 18, a vertical lower wall 19 4spaced from the lower edge of thewall 18, and a door 20 secured to the upper edge of the lower wall member 19 by hinges 21 andbeing of'awidth sullicient to close thev opening between the loweredge of the: wall member `18 and the upper edge of the wall member 19.1A'latch 22 is pivoted to the upper-edge of thedoo'r 20. This latch is of known and conventional` construction and is :operative to position toengage the inner side of the lower edgeof the wall member 158 to holdthe door closedgand'may `also be released to permit the door to be opened to rolo afford access to the inside of the lower portion of the hopper. From the lower edge of the wall member 18 a shelf 23 inclines downwardly and rearwardly toward the lower portion of the inclined wall 14. The rear lower edge of the shelf 23 is spaced from the wall 14, leaving a passage 24 which extends the full width of the hopper between the walls 10, so as to permit the meal to flow through said narrow passage to the sifting device.v From the lower edge of the wall member 19 a ledge strip 25 extends toward the ledge strip 17 and in the same horizontal plane. The ledgev strip 25 extends slightly beyond the inner edge of the member 19.

, elowthe lower ends of the hopper side walls 10 the frame side members 6 have recesses 26 (Fig. 5) formedV therein, and the lower'wallsof said recessesAV are curved ap-v proximately concentrically with the axis of a shaft 27. A screen 28 is curved approximately concentrically with the axis of the shaft 27 and has its ends within the recesses 26 upon the curved lower walls of said recesses and isqclamped therein by plates 29 detachably secured tothe frame side niembers 6 by screws 30. The upper reary and' front edges of the screen 28 overlap and are attached to the upper sides of the ledge strips 17 and 25, respectively. Thev lower portion of the screen 28 is above the supporting guide strips 8 Aa sufficient distance to permit the peel 9 to move freely and to receive the layer of meal sifted through the sieve. v

rljhe shaft 27 vis journaledfor rotation in the lower portions of the hopper sidewalls and projects throughv and beyondthe plates 11.' A pair of bails 31 are attached to the shaft 27.k These bails may be formed,'as shown, by bending a stiff` wire into approximately rectangular form andv having the ends of the rectangularV device formed by the wire extended through holes in the shaft 27, as will be readily understood by reference to Figs. 4 and 5.

To each. end of thel shaft 27 a sprocketl wheel 32 is attached. A chain 33 is engaged over each of the sprocket wheels 32. The rear ends of said chains 33- are attached to projections 34 from a slide 35 that is mounted upon the guide strips 8 between the frame side members 6 and below upper guide members 36. Y The projections 34 extend through slots 37 in the frame side members 6, and extent of forward movement of the slide is limited by the length of the slots 37. The chains 33 pass under idle rollers 38 supported by the plates 11. The front ends of the chain 33 extend downwardly into the tubular legs 2 and are attached to weights 39which operate freely. in said legs.

In operation a desired amount of lmeal is placed in the hopper and will iow through the passage 24 onto the screen 28, but will not completely fill the space below the shelf 23. The shelf 23 is provided so as to prevent the shaft 27 and the bails 31 from being completely imbedded in the meal, with the result that said shaft and bails may be freely operated to agitate the meal. When the peel 9 is removed from the machine, the slide 35 is retained in its foremost position (Fig. 2) by the weights 39. When the peel is in'- serted into the machine upon the guide strips 8 the rear edge of the peel engages the front edge of the slide 35; and, as the peel ispushed rearwardly and inwardly into the machine, the slide 35 is forced rearwardly causing the chains to rotate the wheels 32 and thereby the shaft 27 and they bails 3l. The bails are thereby caused to agitate the meal and to sift or dust the meal through the screen 28 on. to the peel 9. VAfter the peel 9 has been pushed the required distance into the machine it is withdrawn aiid,fas an incident to such withdrawal, the weights 39 operate the chains 33 to rotate the bails 31 in the opposite direction, sifting meal onto the peel. The arrangement is such that a rlayer of meal of sufficient-thickness is dusted onto the peel automatically and as an incident to the insertion and withdrawal of the peel 9.

lThe construction and arrangement may be varied within equivalentlimits without departure from the nature and principle of the invention.

.I claim:

Al. A machine of the character describedcomprising a hopper, a screen forming a discharge device at theV lower end ofthe hopper, an inclined shelf in the hopper controlling the passage of the contents of the hopper to the screen, a shaft extendingv through the hopper parallel with the screen, a bail attached 'to the shaft, a guide for supporting and guiding a peel below the screen, means adaptedtobe operated by the peel moving in one direction to rotate said shaft and thereby said bail, and means operative to rotate the shaft and thereby the bail automatically and as an incident to movement of the peel in the opposite direction.

2. machine ofthe character described comprising a hopper, a screen forming a discharge device at the lower end of the hopper, means for supporting and guiding a peel below the screen, an agitator device for the contents of the hopper, means for operating said agitator device by rearward movement of the peel, and means for operating the agitator device in the opposite direction automatically and as an incident to forward movementof thepeel.

3. A machine of the character described comprising a h opper having an inclined wall, a screen forming a discharge device at the lower end of the hopper, an inclined shelf extending downwardly toward .said inclined wall from connection with the opposite wall ITO and having its lower edge spaced from said' inclined Wall and forming a restricted opening for the passage of the contents of the hopper to the screen, a shaft extending through the hopper parallel with the screen and below said inclined shell, a bail attached tothe shaft within the hopper, means for supporting and guiding a peel below the screen, and means adapted to be operated by the peel moving in one direction to rotate said shaft and thereby said bail.

4. A machine of the character described comprising a hopper having an inclined wall, a screen forming a discharge device at the lower end of the hopper, an inclined shelf eX- tending downwardly toward said i inclined wall from connection with the opposite wall and having its loweredge spaced from said inclined wall and forming a restricted'open-v ing for the passage of the contents of the hopper to the screen, a shaft extending through the hopper parallel with the screen and below said inclined shelf, a bail attached to the shaft within the hopper, means for supporting and guiding a peel below the screen, means adapted to be Operated by the peel moving in one direction to rotate said shaft and thereby said bail, and means operative to rotatethe shaft and thereby the bail automatically and vincident to movement'o'f the peel in opposite direction.

` WALTER W. LA RUE. 

